Basis Of Presentation (COVID-19 Related Asset Impairment Charges) (Details) - USD ($) $ in Millions		3 Months Ended
		May 02, 2020	May 04, 2019
Property, Plant and Equipment [Line Items]
Long-lived asset impairment	[1]	$ 94
Operating lease ROU asset impairment	[1]	23
Total asset impairment		117	$ 0
Applicable long-lived assets [Member]
Property, Plant and Equipment [Line Items]
Carrying value of applicable assets after impairment		15
Applicable operating lease ROU assets [Member]
Property, Plant and Equipment [Line Items]
Carrying value of applicable assets after impairment		$ 6

[1] As of May 2, 2020, the carrying value of the applicable long-lived and operating lease ROU assets after impairment was $15 and $6.